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Higher Intracoronary Attenuation Improves Diagnostic Accuracy in MDCT Coronary Angiography

Filippo Cademartiri1,2,3, Nico R. Mollet1,2, Pedro A. Lemos2, Fransesco Saia2, Massimo Midiri4, Pim J. de Feyter1,2 and Gabriel P. Krestin1

1 Department of Radiology, Erasmus Medical Center, Dr. Molewaterplein 40, Rotterdam, The Netherlands.
2 Department of Cardiology, Erasmus Medical Center, Rotterdam, The Netherlands.
3 Department of Radiology and Cardiology, Azienda Ospedaliero-Universitaria, Parma, Italy.
4 Department of Radiology, Policlinico "P. Giaccone," Palermo, Italy.


Figure 1
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  		Fig. 1A —56-year-old man with stable angina. Example of coronary artery lesion in low-intravascular-attenuation group (260 H). Curved reconstructions performed on MDCT data set show significant stenosis (arrowhead) in middle portion of right coronary artery. Calcification is evident in these images.

 

Figure 2
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  		Fig. 1B —56-year-old man with stable angina. Example of coronary artery lesion in low-intravascular-attenuation group (260 H). Curved reconstructions performed on MDCT data set show significant stenosis (arrowhead) in middle portion of right coronary artery. Calcification is evident in these images.

 

Figure 3
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  		Fig. 1C —56-year-old man with stable angina. Example of coronary artery lesion in low-intravascular-attenuation group (260 H). Coronary angiogram shows reduction of lumen diameter (arrowhead) that does not reach 50%.

 

Figure 4
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  		Fig. 2A —61-year-old man with stable angina. Example of coronary artery lesion in high-intravascular-attenuation group (450 H). Curved reconstructions performed on MDCT data set show significant stenosis of middle portion of left anterior descending coronary artery (arrowhead).

 

Figure 5
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  		Fig. 2B —61-year-old man with stable angina. Example of coronary artery lesion in high-intravascular-attenuation group (450 H). Curved reconstructions performed on MDCT data set show significant stenosis of middle portion of left anterior descending coronary artery (arrowhead).

 

Figure 6
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  		Fig. 2C —61-year-old man with stable angina. Example of coronary artery lesion in high-intravascular-attenuation group (450 H). Coronary angiograms corresponding to A and B confirm finding in left anterior descending coronary artery (arrowhead).

 

Figure 7
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  		Fig. 2D —61-year-old man with stable angina. Example of coronary artery lesion in high-intravascular-attenuation group (450 H). Coronary angiograms corresponding to A and B confirm finding in left anterior descending coronary artery (arrowhead).

 

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